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Every post says something about you. Sometimes far too much.
Social networks are designed to make you share: that's their business model. Every photo, story, like or comment feeds both your public exposure (what anyone can see and cross-reference) and a detailed advertising profile (what platforms infer about you to sell space to advertisers). “Free” means the data is you.
The risks range from oversharing (holidays announced live, an address visible in a photo) to fake profiles and romance scams, up to fraudulent targeted ads: those “personalised” ads offering precisely the fake investment or fake product most likely to make you click. This theme teaches you to control your real audience, spot fake accounts and take back your settings.
Understand why harmless details, once combined, become exploitable.
Before posting, ask what a stranger could do with that info.
10 exercises per level, mixing decision, spotting and quiz. The first 2 levels are free; the next ones open with any subscription.
Each level ends with a mission: what remains to be done once the lesson is understood. Some rely on your report, others on a setting we cannot see: it says so each time.
Your handle opens the door to your public profiles. Look at the ones your scan finds, then reread each bio through a stranger's eyes: your date of birth or your children's school have no business there.
On the network you use most, make your posts visible by default only to approved friends or followers. Then hide your friends list and your contact details. Posts you've already made sometimes keep their old audience: check them.
Go through your list of followers or friends and remove the ones you can't put a name to. A new account with no real photo and no mutual friends sees everything you keep for people close to you: it's often a fake profile biding its time.
On your main network, turn on two-factor authentication, with an authenticator app if possible. In the list of active sessions, sign out the devices you don't recognise. A leaked password will no longer be enough to take the account.
Scroll back through your posts older than five years and the ones you've been tagged in. Delete or restrict whatever a future employer shouldn't read. Whatever stays public reads as if it were posted yesterday.